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Showing 1 to 16 of 16 for “"Thick Plates"”.
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Elementos finitos para flexão de placas com campo de tensões assumido
… of Reissner's theory for bending of "moderately thick" plates and the latter is based on the customary theory of elastic plates. As an application of the first formulation an element for "sandwich plates'' is developed. Listing of FORTRAN subroutines were included in the appendix. They can be …
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Investigation of new phase change material based thermal management systems for Li-ion batteries
… cooling case at a high discharge rate. With cold plates, the battery temperature remains in the specified temperature range at all discharge rates, when the coolant temperature is 30°C. The results show that the thermal management system developed in the present study using 6 mm thick phase change …
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Feasibility Study of a Natural Uranium Neutron Spallation Target using FLiBe as a Coolant
… structures were analyzed using a variety of plates and large cylinders of natural uranium with a proton beam incident on a Hastelloy-N window. The supporting structures were created from Hastelloy-N due to their anti-corrosive properties of molten salts such as FLiBe and their resistance to …
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Modelling of welding with various constitutive models for steel
… on numerical results obtained for the welding of thick plates; that is the bench mark problem considered in this thesis.
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Skewed Bridge Behaviors: Experimental, Analytical, And Numerical Analysis
… <p>In addition, analytical solutions for skewed thick plates under transverse load and skewed bridges subjected to truck load were developed. The thick plate solution was obtained in a framework of oblique coordinate system. The governing equation in that system was first derived and the solution …
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Integrated structural analysis and design using 3-D finite elements
… to the problem of hole shape optimization in thick plates. The plates are modeled by three dimensional eight noded elements. An element by element (EBE) preconditioned conjugate gradient (PCG) method is used for the structural analysis, because this method is well suited for poorly banded …
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Process-induced viscoelastic residual stress analysis of graphite/epoxy composite structures
… time-superposition integration. Both thin and thick plates and cylinders were analyzed, subjected to the manufacturer's recommended cure cycle. In the cylinder case, the effect of the mandrel structure on residual stress fields was also investigated. Stress histories and distributions were …
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Isogeometric Finite Element Code Development for Analysis of Composite Structures
… analysis of composite and sandwich beams and plates. This research also computes stress concentration factor in a composite plate with a hole. Isogeometric nonlinear/linear finite element code is developed for static and dynamic analysis of laminated composite plates. Nurbs linear, quadratic, …
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Analytical Solutions for the Deformation of Anisotropic Elastic and Piezothermoelastic Laminated Plates
… to study the deformation of finite rectangular plates subjected to arbitrary boundary conditions. The effect of truncation of the series on the accuracy of the solution is carefully examined. Results are presented for thick plates with two opposite edges simply supported and the other two …
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Finite Element Analysis of Single Plate Shear Connections
… including the effect of a-distance, plate thickness, plate material, and the position of a connection with respect to a beam neutral axis. In addition, double-column bolt connections were studied. The results show that bolt shear rupture strength of a connection is not a function of the …
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Genetic algorithm based optimisation of FRP composite plates in ship structures
… ship structure are the stiffened and unstiffened plates. For a stiffened plate, the combination of the grillage analysis of energy method based on Navier solution and an equivalent elastic properties approach are introduced. Using this, it is possible to produce layer by layer optimisation results …
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Dynamic Response of Linear/Nonlinear Laminated Structures Containing Piezoelectric Laminas
… PZT actuator. Numerical results for a thin and a thick plate containing one embedded actuator layer and one embedded sensor layer are presented. For the former case, the optimum location of the centroid of the excited rectangular region that will require minimum voltage to control the out-of-plane …
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Three-dimensional layerwise modeling of layered media with boundary integral equations
… method is presented for the analysis of layers, plates, and multi-layered systems consisting of isotropic and linear elastic materials. The problem is formulated for the general case of a multi-layered system using a total potential energy formulation and employing the layerwise laminate theory …
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Modal interactions in the dynamic response of isotropic and composite plates
… governing the nonlinear response of composite plates. The reduction of these equations by using classical plate theory is discussed and the corresponding partial-differential equations governing both rectangular and circular plates are derived. Generalized Levy-type solutions are obtained for …
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Mechanics of Beams and Plates with Variable Mechanical Properties
… particularly in the nonlinear regime and when thickness-stretching effects are considered, remains underexplored. To address this gap, the present thesis develops two-dimensional (2D) and quasi-3D theoretical frameworks to investigate the linear and nonlinear mechanics of beams, plates, and …
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Some issues concerning the dynamic response and damage of composite laminates subjected to low velocity impact
… the effect of preload varies with the span-to-thickness ratio of the specimen, which was found to be a key parameter. It is shown that a tensile preload has the strongest effect on the peak stresses at low span-to-thickness ratios, leading to a reduction of the minimum impact energy required to …